Myocardial ischemia
Encyclopedia
Myocardial ischemia is an imbalance between myocardial oxygen supply and demand. Left untreated, it results in angina pectoris, myocardial stunning
, myocardial hibernation
, ischemic preconditioning
, postconditioning, or under the most severe instances, acute coronary syndrome
and myocardial infarction
.
Myocardial ischemia is the pathological state underlying ischaemic heart disease
.
Myocardial stunning
Myocardial stunning is the reversible reduction of function of heart contraction after reperfusion not accounted for by tissue damage or reduced blood flow....
, myocardial hibernation
Hibernating myocardium
In cardiology, hibernating myocardium is a state when some segmentsof the myocardium exhibit abnormalities of contractile function. Theseabnormalities can be visualised during echocardiography or ventriculography. The finding of a perfusion or metabolic mismatch between PET-FDG and PET-NH3 is...
, ischemic preconditioning
Ischemic preconditioning
Ischemic preconditioning is an experimental technique for producing resistance to the loss of blood supply and, thus oxygen, to tissues of many types. IPC is an intrinsic process whereby repeated short episodes of ischaemia protect the myocardium against a subsequent ischaemic insult. It was first...
, postconditioning, or under the most severe instances, acute coronary syndrome
Acute coronary syndrome
Acute coronary syndrome is usually one of three diseases involving the coronary arteries: ST elevation myocardial infarction , non ST elevation myocardial infarction , or unstable angina ....
and myocardial infarction
Myocardial infarction
Myocardial infarction or acute myocardial infarction , commonly known as a heart attack, results from the interruption of blood supply to a part of the heart, causing heart cells to die...
.
Myocardial ischemia is the pathological state underlying ischaemic heart disease
Ischaemic heart disease
Ischaemic or ischemic heart disease , or myocardial ischaemia, is a disease characterized by ischaemia of the heart muscle, usually due to coronary artery disease...
.